WASHINGTON: The US Chamber of Commerce selected Powell Tate and Purple Strategies as its AORs for the multimillion-dollar “Campaign for Free Enterprise” it plans to launch in mid-October.

The firms will work in tandem on the integrated campaign, a years-long initiative that is expected to be the trade group's largest communications effort, said Tita Freeman, VP of communications and strategy for the Washington-based Chamber.

The Chamber, which announced the campaign in June, plans to tap into the businesses that ...